What are the high-yield cultivation techniques of tomato?

The yield of tomato is also related to the cultivation technique. if there is good field management, the tomato yield will increase accordingly, so what is the high-yield cultivation technique of tomato?

1. High-yield cultivation techniques of tomato

1. Seed selection: it is necessary to select good varieties with good resistance to diseases and insect pests, heat and cold resistance. Qiangfeng, Jiafan 10, Zhongshu 4 and Jinfen 65 are all good varieties.

Before sowing, it is also necessary to soak the seeds with an appropriate amount of trisodium phosphate solution. The specific operation method is as follows: soak the seeds in clean water for 3 hours, wash them clean, soak 30min in 10% sodium phosphate solution, then rinse with clean water, and then sow seeds after 20 hours of drying.

2, planting: choose loose, good drainage soil for planting, generally row spacing of about 60 cm, plant spacing of about 30 cm, in addition to re-application of base fertilizer, slow seedling after one time to promote seedling fertilizer.

250 kilograms of rotten manure or 12.5 kilograms of potassium sulfate can be applied per mu, and then irrigated once more to cool down and slow down the seedlings.

Colonization is generally chosen in sunny and windless weather.

3. Field management: rational watering, fertilization and pest control.

Among them, the disease is divided into late blight, virus disease, bacterial wilt and so on, different pest control methods are also different, need to use pesticides according to the specific situation.

II. Control methods of tomato diseases and insect pests

1. Late blight: crop rotation with non-Solanaceae crops for more than 3 years; at the initial stage of the disease, it was diluted 800-1000 times with 72% Dumojing wettable powder, sprayed once every 7-10 days, 3-4 times in a row; remove the diseased leaves and fruits and bury them in time in the onset season, and remove the diseased remains in time after harvest.

2. Virus disease: select disease-resistant hybrid varieties; scientific management, cultivate strong seedlings, increase application of phosphorus and potassium fertilizer, promote plant growth and health, so as to improve disease resistance; select disease-free seeds and disinfect seeds before sowing; before or at the onset of the disease, 1000 times solution of 40% Kedubao soluble powder can be selected and sprayed every 7-10 days for 2-3 times.

3. Ralstonia solanacearum: rotation is carried out in seriously diseased areas and seriously diseased fields, preferably in flood-drought rotation with rice; inspection is strengthened at the early fruit stage, and once diseased plants are found, they are immediately removed, collected and burned, and 77% of the diseased and nearby plants can be killed 800 times as much as suspension. or 800-fold solution, more than 2 times, once every 7-10 days, dense before and after sparse, drenched foot (200-500 ml / plant or more).